| 摘要 |
A retracting mechanism used in an automatic multiple collapsible umbrella. The mechanism primarily consists of a spring, one end of which is attached to a second umbrella stretcher and the other end connected to a flexible rib and an umbrella strut. When the umbrella is collapsed, the restoring force of the spring will directly urge umbrella stretchers and ribs to move toward the central umbrella rod. The mechanism of the invention can produce an effect of smoothly collapsing umbrellas with less acting force. In addition, there is only one hole required for the attachment of the umbrella strut and flexible rib. Thus it also has the effects of enhanced strength and shortened manufacturing processes.
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